Speaker



FIG. 1 is a front view of a speaker according to one embodiment;

FIG. 2 is a side view thereof;

FIG. 3 is a side perspective view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a front view of a speaker according to another embodiment;

FIG. 6 is a side view of the speaker of FIG. 5; and,

FIG. 7 is a side perspective view of the speaker of FIG. 5. 

We claim the ornamental design for speaker, substantially as shown and described. 